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首页> 外文期刊>International Journal of Electrochemical Science >Experimental and Theoretical Studies of Cysteine and Melamine as Corrosion Inhibitors on Carbon Steel in Phase- Change-Materials Solution
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Experimental and Theoretical Studies of Cysteine and Melamine as Corrosion Inhibitors on Carbon Steel in Phase- Change-Materials Solution

机译：半胱氨酸和三聚氰胺作为缓蚀剂在碳钢上的相变材料溶液的实验和理论研究

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摘要

The corrosion protection performance of cysteine (Cys) and melamine (Mel) on 1045 carbon steel (CS)in a phase-change-material (PCM) solution has been studied by electrochemical impedance spectroscopy(EIS), potentiodynamic polarization (PDP) measurements, scanning electron microscopy (SEM) and Xray photoelectron spectroscopy (XPS). The EIS results showed that Cys and Mel can protect CS fromcorrosion in a PCM solution, and that a combined Cys/Mel inhibitor can increase the corrosion protectionefficiency, achieving a value of up to 96.3%. The PDP measurements confirmed that Cys, Mel andcombined Cys/Mel inhibitors can all protect CS from corrosion. The SEM micrographs showed that allthree inhibitors can prevent the corrosion of CS in a PCM solution. The XPS results showed that Cysand Mel can adsorb onto the CS surface to form films, thereby inhibiting CS corrosion in PCM solutions.Quantum chemical calculations and molecular dynamics (MD) simulations were used to theoreticallyinvestigate the inhibition mechanism.
机译：通过电化学阻抗谱（EIS），电势极化（PDP）测量研究了半胱氨酸（Cys）和三聚氰胺（Mel）对1045碳钢（CS）在相变材料（PCM）溶液中的腐蚀防护性能，扫描电子显微镜（SEM）和X射线光电子能谱（XPS）。 EIS结果表明，Cys和Mel可以保护CS在PCM溶液中不受腐蚀，并且Cys / Mel抑制剂的组合可以提高腐蚀保护效率，其值高达96.3％。 PDP测量结果证实，Cys，Mel和组合的Cys / Mel抑制剂均可保护CS免受腐蚀。 SEM显微照片显示，所有三种抑制剂均可防止PCM溶液中CS的腐蚀。 XPS结果表明，Cysand Mel可以吸附到CS表面形成膜，从而抑制PCM溶液中的CS腐蚀。运用量子化学计算和分子动力学（MD）模拟理论研究了抑制机理。

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